JOB-9003 Explosive Unreacted State Equation Study

Equation of State refers to the relationship between the thermodynamic state of the objects. Equation of state at the high temperature and pressure is the basic research for the state of matter changes in high temperature and pressure conditions. Shock initiation and detonation in the field of research, numerical simulation of fluid dynamics required for the reaction unreacted explosive equation of state, the product of the reaction rate and the equation of state function, wherein the calibration parameters requires explosive shock initiation and detonation test measurement data, unreacted explosives experimental methods equation of state of the main wedge test pressure comparison method, static and quasi-isentropic loading high pressure loads and other experimental techniques. Existing experimental measurement techniques have manganin pressure gauge, VISAR, modular electromagnetic particle velocity meter.Development of high-pressure technology provides an important prerequisite for the study of material properties over a wide region of the press section. In this paper, one dimensional shock initiation is loaded on the explosiveJOB-9003 with gun power, and get the unreacted explosive JOB-9003 equation of state. In this paper, research and results are as follows.1. Design a set of magnetic particle velocity based Al. The thickness of the aluminum foil 10um, width 0.1mm, about 4Q resistance, selected to match the impedance with explosives polyimide as an insulating film having a thickness of 25um, total thickness gauge 60um. Total 8 groups and three groups speedometer shock tracer. The reaction time is controlled in 20nm for the high-quality signals.2. JOB-9003 explosive for one dimensional shock initiation, had measured the particle velocity of explosive growth chart, and with the datas getting its shock Hugoniot curve, PoP diagram.3. Using the shock Hugoniot curves obtained the equation of state of cold items, which have Mur?Birch?Morse equation of state, and also the coefficients y are discussed.4. Using the state equation parameters unreacted state equation and the product obtained in dyna2d simulation software, access to the relevant parameters Lee-Travel reaction rate model and experimentally obtained JOB-9003 detonation wave reaction section are compared, a high degree of agreement.This innovation work:the traditional equation of state workers are just simply fitting the measured Hugoniot in solving the cold items, not the cold item in the true sense (OK isothermal compression line), this article derived from the basic theory began to use shock Hugoniot at room temperature to obtain the contribution of the cold item.